Results 11 to 20 of about 1,020,792 (164)
, 2020 UUV(unmanned underwater vehicle,无人水下航行器)在海洋民用与军事领域具有广阔的应用前景。UUV耐压结构作为影响UUV负载能力及保障UUV航行任务安全高效执行的重要部件,其优化设计有重要意义。为了最大程度地实现减重目标,有效平衡耐压结构质量、结构强度和稳定性之间的矛盾,进而提升UUV综合性能,提出一种基于组合加权响应面法的多目标优化方法。通过试验设计得到初始采样点,利用有限元工具计算响应值并构建代理模型;然后,以折衷规划法对子目标进行归一化处理 ...
郑荣, 于延凯, 朱兴华, 高启升
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, 2017 人性化设计指的是从人的行为习惯、思维方式、心理情况和生理结构等来优化产品设计，从而实现人、产品、环境的和谐共生,其中，人性化设计以绿色设计为终极目标。电梯是一种用于公共场所和高层建筑的交通工具，其在社会生产生活中随处可见，因此将人性化设计理念引入电梯系统设计中非常必要。论文主要分析了一种基于人性化设计理念的电梯系统设计方案。
陶 陶
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Rare Metals, Volume 45, Issue 7, July 2026.ABSTRACT Fe‐Cr‐Ni‐Cu alloy has been extensively utilized over the past few decades due to its low cost yet high strength. Nevertheless, the poor ductility of this alloy limits its real application in industrial fields. In this study, a soft Fe‐Cr‐Ni alloy was combined with a Fe‐Cr‐Ni‐Cu alloy by laser‐directed energy deposition (LDED) to fabricate the ...
Jiuxing Tang +9 more
wiley +1 more source
Does the Community Understand the Community Guidelines?
Policy &Internet, Volume 18, Issue 2, June 2026.ABSTRACT Amid continued public controversy and political debate about online speech governments and civil society have pushed social media platforms to increase transparency around how they regulate speech, through community guidelines and content moderation systems, to support users to hold companies accountable for content removals.
Friederike Quint +4 more
wiley +1 more source
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT NiTi shape memory alloys (SMAs) show excellent performance in vibration damping and corrosion resistance. However, due to low hardness and lack of self‐lubrication, they suffer severe friction and wear during service. Although various strategies including doping and heterostructure design have been proposed, the effects are unsatisfactory.
Huwen Ma +13 more
wiley +1 more source
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT The strength and ductility trade‐off in titanium matrix composites (TMCs) is a critical factor limiting their widespread application. In this study, a (TiB + TiC)/Ti–6Al–4V composite with an optimal balance between strength and ductility was engineered via multi‐directional forging.
Chunyu Shen +8 more
wiley +1 more source
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT The urgent environmental crisis caused by polyethylene terephthalate (PET) waste necessitates efficient upcycling strategies. Herein, we establish a novel pathway to transform waste PET plastic into a high‐performance catalytic material for mediating the oxygen evolution reaction (OER). Through a one‐step hydrothermal process, waste PET serves
Xin Wang +5 more
wiley +1 more source
Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Composite materials hold significant potential for abrasive sealing, yet composite materials used for abrasive sealing fall short in service durability under extreme environments. Here, a controllable strategy for adjusting pore structure is proposed, aiming to design a YSZ(ESP)/BN@ZrO2‐polyester coating with hybrid micron/nanometer ...
Shuang Yu +8 more
wiley +1 more source
, 2001 以小卫星共用平台相配套, 以面向时象的程序设计方法(OOP)为塞础, 提出软件共 用平台的设计. 利用(OOP)的封装性、继承性和多态性, 设计小卫星软件的基本类库, 介绍各 个基本类的具体设计思想 。 最后给出由基本类库生成星载机软件系统的实例。 实践表明, 软件 共用平台对小卫星研制是行之有效的技术 。国家高技术航天领域"863-2" 基金资助项目:编号863-2-5-1 ...
吴翔虎, 程光明, 廖明宏
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Rare Metals, Volume 45, Issue 5, May 2026.ABSTRACT Magnesium (Mg)‐based composites are regarded as promising lightweight materials with significant potential for structural applications. The structure–property relationships of bionic Mg‐based composites remain unclear. Herein, three honeycomb‐like Mg‐Fe composites are fabricated to uncover the underlying strengthening mechanisms.
Fan Zhang +5 more
wiley +1 more source